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	<div id="winchm_template_button"><A href="_usbkd_usbportisasyncadv.htm" title="Previous topic"><img id="winchm_template_prev" alt="Previous topic" src="../template2/btn_prev_n.gif" border="0"></a><A href="_usbkd_usbportmddcontext.htm" title="Next topic"><img id="winchm_template_next" alt="Next topic" src="../template2/btn_next_n.gif" border="0"></a></div>
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	<div id="winchm_template_title">!usbkd.usbportmdportlog</div>
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	<div id="winchm_template_content"><div id="mainSection"><p>The  <b>!usbkd.usbportmdportlog</b> command displays the USBPORT debug log if it is present in a crash dump
that was generated as a result of <a href="#Bookmark1812"><b>Bug Check 0xFE</b></a>.</p>
<pre class="syntax"><b>!usbkd.usbportmdportlog</b></pre>
<h2><a id="DLL"></a><a id="dll"></a>DLL</h2>
<p>Usbkd.dll
     </p>
<h2>Remarks</h2>
<p>Use this command only when you are debugging a crash dump file that was generated as a result of <a href="#Bookmark1812"><b>Bug Check 0xFE: BUGCODE_USB_DRIVER</b></a>.</p>
<h2>Examples</h2>
<p>Here is an example of a portion of the output of <b>!usbportmdportlog</b>.</p>
<pre class="syntax" xml:space="preserve"><code>1: kd&gt; !analyze -v
*** ...
BUGCODE_USB_DRIVER (fe) 
...
1: kd&gt; !usbkd.usbportmdportlog
Minidump USBPORT DEBUG_LOG buffer size 32768, entries 1024, index 400
*LOG: 0000000113be9600  LOGSTART: 0000000113be6400 *LOGEND: 0000000113bee3e0 # 1024 
[ 000] 0000000113be9600 Bfe2 ffffe0001416802c ffffe000020a44f0 ffffe0001416801c 
[ 001] 0000000113be9620 Bfe0 0000000000000000 ffffe000039f4720 ffffe00000b76cb0 
[ 002] 0000000113be9640 epr+ ffffe000043ee010 ffffe000008f5b80 ffffe00002820a0c 
[ 003] 0000000113be9660 alTR ffffe00002820a0c ffffe000039f4720 ffffe00000b76cb0 
//
// USBPORT_Core_AllocTransferEx()
// transfer:                ffffe00002820a0c
// Urb:                     ffffe000039f4720
// Irp:                     ffffe00000b76cb0

[ 004] 0000000113be9680 TRcs 0000000000000060 0000000000000468 0000000000000001 
[ 005] 0000000113be96a0 urbi ffffe0001422c4cc 0000000000000012 000000000000000b 
[ 006] 0000000113be96c0 dURB ffffe000039f4720 ffffe00000b76cb0 000000000000000b 
//
// USBPORT_ProcessURB() - Device Handle valid and has been referenced
// Urb:                     ffffe000039f4720
// Irp:                     ffffe00000b76cb0
// function:                URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE

[ 007] 0000000113be96e0 vld&gt; ffffe0001421ddd0 0000000000000004 ffffe000039f4720 
//
// USBPORT_NeoValidDeviceHandle()
// DeviceHandle:            ffffe0001421ddd0
// ReferenceObj:            ffffe000039f4720

[ 008] 0000000113be9700 devH ffffe0001421ddd0 ffffe000039f4720 0000000000000000 
[ 009] 0000000113be9720 pURB ffffe000039f4720 ffffe00000b76cb0 000000000000000b 
//
// USBPORT_ProcessURB()
// Urb:                     ffffe000039f4720
// Irp:                     ffffe00000b76cb0
// function:                URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE

[ 010] 0000000113be9740 PURB ffffe000039f4720 ffffe000020a44f0 000000000000000b 
//
// USBPORT_ProcessURB() - Exit STATUS_PENDING
// Urb:                     ffffe000039f4720
// Irp:                     ffffe000020a44f0
// function:                URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE

[ 011] 0000000113be9760 Urb&lt; 0000000000000103 000000000000000b 0000000000000000 
[ 012] 0000000113be9780 xSt0 ffffe000012bbf18 0000000000000006 0000000000000001 
[ 013] 0000000113be97a0 xnd8 ffffe000012bbf18 ffffe000012bb050 0000000000000000 
[ 014] 0000000113be97c0 xnd0 ffffe000012bbf18 ffffe000012bb050 0000000000000000 
//
// USBPORT_Xdpc_End()

[ 015] 0000000113be97e0 mapF 0000000000000000 0000000000000000 0000000000000000 
[ 016] 0000000113be9800 map5 0000000000000000 0000000000000000 0000000000000000 
[ 017] 0000000113be9820 DMAx 0000000000000000 0000000000000000 0000000000000000 
[ 018] 0000000113be9840 subx 0000000000000000 0000000000000000 ffffe0001416801c 
[ 019] 0000000113be9860 tmoZ 0000000000000000 ffffe0001416801c ffffe000141680a4 
...
...</code></pre>
<h2><a id="see_also"></a>See also</h2>
<dl>
<dt><a href="#Bookmark2553">USB 2.0 Debugger Extensions</a></dt>
<dt><a href="http://go.microsoft.com/fwlink/p?LinkID=227351">Universal Serial Bus (USB) Drivers</a></dt></dl></div></div>	
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